When newly installed, the thermostat goes into intstaller setup when first powered. If re-entering installer setup at a later time, go to menu, installer options, and enter the passcode
(shown on page 2).
1. Follow prompts on the screen to select the appropriate options.
2. For all installer options, press the or buttons to change the option.
3. Press Next to move to the next setting, and Done when setup is complete.
NOTE: The product data sheets list all installer setup options and is available at customer.resideo.com.
** The THP9045A1098 C-wire adaptor is used on heat/cool systems when you only have four wires at the thermostat and you need a fifth wire for a common wire. Use the K terminal in
place of the Y and G terminals on conventional or heat pump systems to provide control of the fan and the compressor through a single wire–the unused wire then becomes your
common wire. See THP9045 instructions for more information.
Wiring
Wiring guide–conventional systems
[1] Power supply. Provide disconnect means and overload protection as required.
[2] Remove jumper for 2-transformer systems.
[3] Common connection must come from cooling transformer if a 2 transformer installation.
Wiring guide–heat pump systems
[1] Power supply. Provide disconnect means and overload protection as required.
[4] O/B set to control as either O or B in installer setup.
[5] Heat pump reset (powered continuously when thermostat is set to Em. Heat; system monitor when set to Heat, Cool, or Off).
NOTE: The product data sheets have more extensive wiring diagrams and is available at customer.resideo.com.
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